Gas-burner cookstove



Aug.

A. F. T HOMPSON GAS BURNER COOK STOVE Filed'De c. 2, 1926 Patented Aug. 39, 1927.

UNITED STATES AUGUSTUS F. THOM PSON, OF HUNTINGTON, WEST VIRGINIA.

GAS-BURNER COOKSTOVE.

Application filed December 2, 1928. Serial No. 152,152.

This invention relates to that type of stove either coolring'or heating, or a gas plate, in which a burner of the gas-jet type is employed, and the object of the invention is to simplify and improve the construction to the end that clogging of the gas-jet will be avoided and also that the parts of the burner may be gotten at conveniently and separated readily for cleaning purposes, as more fully hereinafter set forth.

In the drawing Fig. 1 is a vertical sectional view of a stove constructed in accordance with my in 'vention Fig. 2 isa similar view of the burner somewhat enlarged;

Fig. 3 is a detail plan of the burner proper;

Fig. 4 is a detail perspective view of the gas-jetting device.

The gas is supplied by means of a tube 5 having a valve 6, said tube being threaded into one end of a jet-tube 7 carrying a jetnipple 8 directed upwardly to jet the gas into the mixing-tube 9. The jet-tube 7 is provided with upstanding integral arms 10 which are integrally connected with a baseplate 11 provided with a central threaded hole 12, down into which the mixer-tube 9 is removably screwed.

The jet-tube hanger is fastened to a horizontal bar 18 attached to the side walls of the stove-frame, the attaching means being bolts or ri ets 14; or other means such as welding or slip joint. This bar 13 is provided with longitudinal flanges 15 which embrace the base-plate 11 and the hanger-arms 10, thus providing a rigid support for the jet-tube 7 which in turn supports the inner end of the gas-tube 5. The bar 13 is desirably made of sheet-metal, with its ends turned down to form depending flanges 16 which are clamped to the side wall of the stove by bolts 17, slots 18 being provided in the depending flanges 16 for the purpose of vertically adjusting the bar 13 together with its attached parts. This bar 13 not only carries the mixing-tube and the jet-tube, but also supports the burner proper, which is mounted on top of the mixing-tube 9.

The burner proper consists of a centrallydepending nipple 19 adapted to slip down over the smooth top-end of the mixing-tube 9, an internal shoulder 20 being provided in the nipple to strike against the upper-end of the mixing-tube. In this way, the burner may be readily removed from the top-end of the mixing-tube, and the mixing-tube in turn may be readily unscrewed from the base-plate 11 for convenience in cleaning the jet-nozzle 8. This is an especially big advantage in view of the fact that it is practically impossible to prevent accumulations of gas deposits, lint, etc. from clogging up the jet. Also, this particular construction of jet-tube is advantageous in that any foreign matters that fall down through the mixingtube 9 or alight upon the upper surface of the jet-tube 7 are free to fall away from the burner because of the open spaces between the two depending arms 10. These open spaces of course permitthe necessary supply of air for mixing with the ct as it enters the mixer-tube.

The burner consists of a horizontal mixing-chamber into which the passage through nipple 19 discharges centrally. It consists of a plurality of arms, five being shown in the present instance, forming a sort of rosett'e. Each arm is in the form of a. hollow ring 21 provided with the usual burner-tips 22 and connected to a central chamber by means of short radial tubes A3. The burnernipples 22 are arranged in a circle around each ring, and one or more are arranged in the connecting tubes 23, whereby a multiplicity of flames are provided for throughout the upper surface of--the burner, except at the center where an imperforate plate 24 is arranged centrally over the exit from the mixer-tube. The mixed air and gas strike the plate and the mixture is deflected outwardly through the radial tubes 23 in a substantially uniform manner. The central imperforate plate 24 serves as a cover for the top of the mixing-tube, to thus prevent foreign matters falling down through the mixing-tube to the gas-jet-nozzle, this being especially advantageous in thus preventing boiling-over liquids from splashing or running down into the mixer-tube.

A feature of advantage in my present type of gas-jet device is that the opposite end of the tube 7 is adapted to be connected to an extension gas-pipe leading to one orniore additional burners, as shown in dotted lines in Fig. 1, located in the same stove or in an adjacent stove. To enable this to be done, I close this end of the tube 7 with a sercw plug 25 tapped into the end of the tube 7 and adapted to be removed whenever the extension-pipe is to be connected to the tube 7.

What I claim is:

1. A stove of the character set forth consisting of a casing, a bar adj ustably mounted therein and provided with depending flanges at its edges, a base-plate attached to the bottom of said bar, within said flanges, this base-plate being provided with a pair of depending separated arms carrying at their lower ends a gas-jetting tube, a gas-supply tube connected to said gas-jetting tube, a mixer-tube screwed down into said baseplate, and a removable burner mounted on the upper end of said mixer-tube.

2. A stove of the character set forth consisting of a casing a supporting-bar mounted therein a casting having a base plate secured to said bar and a pair of depending separated arms connected at their lower edges by an integral tube, said base-plate being provided with a threaded hole and said tube being provided with a jet-nipple on its upper side directed toward said hole a. supply pipe oonnnected to one end of said tube, a removable mixer-tube screwed into the hole in the baseplate, and a movable burner mounted on top of said mixertube.

In testimony whereof I hereunto affix my signature.

AUGUSTUS F. THOMPSON. 

